The Honeywell MC-TAMT04 (51305890-175) is a high-performance Thermocouple Input Terminal Board designed for use within Honeywell TDC distributed control systems. This module is engineered to handle low-level analog signals, providing reliable signal conditioning and interface capabilities for industrial temperature monitoring applications. It features 16 circuits and supports remote cold junction compensation, ensuring accurate data acquisition in complex process environments.
Features
Supports 16 thermocouple input circuits.
Fully isolated channel-to-channel, channel-to-PM, and channel-to-power supply common in 16-channel increments.
Remote cold junction compensation capability for enhanced measurement precision.
Designed for low-level analog signal processing.
Robust solid-state construction for demanding industrial environments.
Technical Specifications
Parameter
Specification
Model
MC-TAMT04 (51305890-175)
Input Type
Thermocouple / Millivolt
Nominal Input Range
-20 to +100 mV
Channel Bandwidth
0 to 4.7 Hz (-3 dB)
Gain Error
0.050% full scale max
Temperature Coefficient
+/-20 ppm per deg C max
CMV (to Power System Common)
+/-250 VDC or VAC RMS
Crosstalk (DC to 60 Hz)
80 dB (120 dB at 50/60 Hz)
NMRR (50/60 Hz)
60 dB min
TC Linearization Accuracy
+/- 0.05 deg C
Installation Guidelines
Ensure the control system is powered down before installing or removing the terminal board to prevent electrical damage.
Handle the module using proper ESD (Electrostatic Discharge) precautions to protect sensitive internal components.
Verify that all field wiring is properly shielded and routed away from high-voltage or high-EMI sources to maintain signal integrity.
Ensure proper grounding of the terminal board chassis to the system common as specified in the Honeywell TDC installation manual.
Confirm that the terminal board is securely seated in the designated rack slot to ensure reliable contact with the backplane.
FAQ
Is this module still in production?
No, the Honeywell MC-TAMT04 (51305890-175) has been discontinued by the manufacturer. We provide high-quality surplus units to support legacy system maintenance.
What is the primary function of this board?
This terminal board serves as a signal interface for thermocouple inputs, providing isolation and signal conditioning before the data is processed by the TDC system's process manager.
